CN115602133A - Liquid crystal display panel and driving method - Google Patents
Liquid crystal display panel and driving method Download PDFInfo
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- CN115602133A CN115602133A CN202211316844.8A CN202211316844A CN115602133A CN 115602133 A CN115602133 A CN 115602133A CN 202211316844 A CN202211316844 A CN 202211316844A CN 115602133 A CN115602133 A CN 115602133A
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- 239000000463 material Substances 0.000 claims description 10
- 238000002834 transmittance Methods 0.000 claims description 10
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- 238000001514 detection method Methods 0.000 claims description 7
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- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
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- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133394—Piezoelectric elements associated with the cells
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
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Abstract
The application discloses a liquid crystal display panel and a driving method, wherein the liquid crystal display panel comprises a display area and a non-display area, the display area comprises a first display area and a second display area arranged on one side along the gravity direction, and the display panel further comprises a pressure sensor and a display driving module; the pressure sensor is arranged corresponding to the second display area; the display driving module is connected with the pressure sensor; the pressure sensor detects liquid crystal pressure of the second display area, and the display driving module adjusts the differential voltage data display signal to output according to the liquid crystal pressure so as to drive picture display. This application sets up pressure sensors in the corresponding region of gravity mura (mura), constantly adjusts differential voltage data display signal according to liquid crystal pressure's change to make differential voltage data display signal change the penetration rate of display panel's pixel in real time, with this penetration that increases the blue light, the whole display effect of adjustment picture, the problem that the picture display that improves liquid crystal display panel and cause because of gravity mura turned yellow.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to a liquid crystal display panel and a driving method thereof.
Background
At present, a liquid crystal display has become the mainstream of the display field due to the advantages of zero radiation, low power consumption, small heat dissipation, small volume, accurate image restoration, sharp character display and the like; the structure of the liquid crystal display panel is mainly composed of a thin film transistor array substrate (TFT), a color filter substrate (CF), and a liquid crystal layer between the two substrates. The liquid crystal is a liquid crystal, and has the birefringence of anisotropic crystals, and also has the fluidity, viscosity and elasticity of liquid.
The liquid crystal is probably added excessively or the ambient temperature rises to cause the volume increase during manufacturing, receives the gravity to influence and gathers downwards under the long-term vertical service condition of liquid crystal display panel, leads to liquid crystal gathering in the bottom for the box thickness of the bottom of liquid crystal display panel increases, and the blue light penetration rate reduces, thereby leads to the screen display to turn yellow, appears the phenomenon of gravity Mura, influences liquid crystal display panel's display effect.
Disclosure of Invention
The present application provides a liquid crystal display panel and a driving method thereof, which improve a gravity mura phenomenon by adjusting a differential voltage data display signal.
The application discloses a liquid crystal display panel, which comprises a display area and a non-display area, wherein the display area comprises a first display area and a second display area arranged on one side along the gravity direction, and the display panel further comprises a pressure sensor and a display driving module; the pressure sensor is arranged corresponding to the second display area; the display driving module is connected with the pressure sensor; the pressure sensor detects the liquid crystal pressure of the second display area, and the display driving module adjusts the differential voltage data display signal to output according to the liquid crystal pressure so as to drive the image to display.
Optionally, the liquid crystal display panel includes a second substrate of the first substrate disposed opposite to the cell, a liquid crystal layer disposed between the first substrate and the second substrate, and a sealant disposed around edges of the first substrate and the second substrate, and the pressure sensor is disposed on a surface of the sealant near the liquid crystal.
Optionally, the liquid crystal display panel includes the second base plate of the first base plate that sets up to the box, sets up first base plate with the liquid crystal layer between the second base plate, pressure sensors sets up on the black matrix of first base plate court in the direction of second base plate, the projection of black matrix covers pressure sensors's projection.
Optionally, the liquid crystal display panel includes the second base plate, the setting of the first base plate that set up to the box first base plate with liquid crystal layer between the second base plate, be equipped with the light shield layer on the second base plate, pressure sensors sets up the light shield layer is close to on the one side of liquid crystal layer second base plate court in the direction of first base plate, the projection of light shield layer covers pressure sensors's projection.
Optionally, the liquid crystal display panel includes the second base plate, the setting of the first base plate that set up to the box are in the first base plate with liquid crystal layer between the second base plate, be equipped with the color resistance layer on the second base plate, the display driver module still includes detection calculation module, detection calculation module basis pressure sensor's pressure size and color resistance layer's transmissivity change relation calculate output carry out the differential voltage data display signal after compensating extremely the liquid crystal display panel shows.
Optionally, the pressure sensor includes a compression material and an integrated circuit integrated with the compression material, and the compression material includes single crystal silicon, graphene, and carbon nanotube material.
The present application also discloses a driving method for driving the liquid crystal display panel as described in any one of the above, the driving method comprising the steps of:
detecting pressure generated by liquid crystal in the second display area; and
and calculating and generating an adjusted differential voltage data display signal according to the detected pressure, and outputting the display signal to drive a picture to display.
Optionally, the step of calculating and generating an adjusted differential voltage data display signal according to the detected pressure to output the generated adjusted differential voltage data display signal to drive a picture to display includes:
detecting the penetration rate of the color resistance layer to obtain the actual brightness value of the corresponding color resistance;
and comparing the actual brightness with a preset target brightness to calculate a brightness difference, and performing algorithm compensation according to the brightness difference to generate an adjusted differential voltage data display signal for output.
Optionally, the step of detecting the pressure generated by the liquid crystal in the second display area further includes, before the step of detecting the pressure generated by the liquid crystal in the second display area:
verifying and evaluating the data relation between the cell thickness of the liquid crystal display panel and the transmittance of the color resistance layer; and
and verifying and evaluating the data relation between the cell thickness of the liquid crystal display panel and the frame glue of the liquid crystal in the second display area or the side of the first substrate or the second substrate.
Optionally, the second display area is divided into a plurality of sub-display areas, one pressure sensor is disposed corresponding to each sub-display area, and the step of detecting the pressure generated by the liquid crystal in the second display area includes:
detecting the pressure generated by the liquid crystal of each sub-display area in the second display area;
the step of calculating and generating an adjusted differential voltage data display signal according to the detected pressure to output the adjusted differential voltage data display signal so as to drive the picture to display comprises the following steps of:
and respectively calculating and generating differential voltage data display signals corresponding to each sub-display area according to the pressure fed back by the pressure sensor corresponding to each sub-display area, and outputting the differential voltage data display signals to drive the image display.
For the scheme of taking unnecessary liquid crystal out in order to avoid gravity mura, this application sets up pressure sensors in the region that corresponds gravity mura between two base plates, pressure sensors receive the liquid crystal and come from the liquid crystal pressure that the liquid crystal gathers together or the pressure that thermal expansion produced, direct differential voltage data display signal that corresponds according to the pressure adjustment from the liquid crystal, drive the display with the differential voltage data display signal after will adjusting, constantly adjust differential voltage data display signal according to the change of pressure, so that differential voltage data display signal changes the transmissivity of the pixel of display panel in real time, with this penetration that increases the blue light, adjust the whole display effect of picture, improve the picture display yellow problem that the liquid crystal display panel caused because of gravity mura.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural view of a liquid crystal display panel according to a first embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a liquid crystal display panel of a first embodiment of the present application;
fig. 3 is a schematic cross-sectional view of a liquid crystal display panel of a second embodiment of the present application;
fig. 4 is a schematic cross-sectional view of a liquid crystal display panel of a third embodiment of the present application;
fig. 5 is a flowchart of a driving method of the fourth embodiment of the present application;
fig. 6 is a flowchart of a driving method of the fifth embodiment of the present application.
100, a display panel; 110. a first substrate; 111. a black matrix; 120. a second substrate; 121. a light-shielding layer; 122. a color resist layer; 130. a liquid crystal layer; 140. a pressure sensor; 150. a display driving module; 160. a detection calculation module; 170. frame glue; 200. a display area; 210. a first display area; 220. a second display area; 221. a sub-display area; 300. a non-display area; 400. and the source electrode drives the chip.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless stated otherwise, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the inventive concept of the present application can form a great variety of embodiments, but the application documents are limited in space and cannot be listed one by one, so that, on the premise of no conflict, any combination between the above-described embodiments or technical features can form a new embodiment, and after each embodiment or technical feature combination, the original technical effect will be enhanced, and the present application will be described in detail with reference to the drawings and the optional embodiments.
Fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present application; the embodiment discloses a liquid crystal display panel 100, the liquid crystal display panel 100 includes a display area 200 and a non-display area 300, the display area 200 includes a first display area 210 and a second display area 220 arranged at one side along the gravity direction, the display panel further includes a pressure sensor 140 and a display driving module 150; the pressure sensor 140 is disposed corresponding to the second display area 220; the display driving module 150 is connected to the pressure sensor 140; the pressure sensor 140 detects a liquid crystal pressure in the second display area 220, and the display driving module 150 adjusts a differential voltage data display signal according to the liquid crystal pressure to output the differential voltage data display signal to drive a picture to display, wherein the differential voltage data display signal is generally a differential voltage signal (LVDS RGB).
The liquid crystal display panel 100 is divided into a first display area 210 and a second display area 220, considering that in the using process, liquid crystal is influenced by gravity and gathers towards the lower end of the liquid crystal display panel 100, namely the second display area 220, a pressure sensor 140 is arranged corresponding to the second display area 220, pressure generated after liquid crystal gathering is sensed by the pressure sensor 140 to generate a corresponding electric signal, the electric signal is transmitted to a display driving module 150, the display driving module 150 outputs differential voltage data display signals of pixels to enable the pixels to perform light emitting display, after the pressure of the liquid crystal changes, the pressure sensor 140 detects the liquid crystal pressure of the second display area 220, the display driving module 150 adjusts the differential voltage data display signals according to the liquid crystal pressure to output to drive picture display, and when the pressure sensor 140 receives pressure, the differential voltage data display signals are fed back and output to LVDS RGB signals to control according to the change relation between the magnitude of the received pressure and the penetration, so that the penetration of blue light is increased, and the overall display effect of the picture is adjusted. According to the liquid crystal display panel, the structure of the liquid crystal display panel 100 does not need to be changed, and only the pressure sensor 140 needs to be added, so that the yellowing of the picture display of the liquid crystal display panel caused by the gravity mura can be improved to the greatest extent.
Further, the liquid crystal display panel 100 includes a second substrate 120 of the first substrate 110, a liquid crystal layer 130 disposed between the first substrate 110 and the second substrate 120, and sealant 170 disposed around edges of the first substrate 110 and the second substrate 120, the pressure sensor 140 is disposed on a surface of the sealant 170 close to the liquid crystal, when the liquid crystal display panel 100 works in a vertical direction, the liquid crystal also falls down along a gravity direction, and a region of the sealant 170 corresponding to the falling direction is provided with the pressure sensor 140, so that a downward pressure of the liquid crystal can be obtained in time, and the downward pressure of the liquid crystal can be fed back to the display driving module 150 quickly to generate a corresponding differential voltage data display signal to drive the display of the liquid crystal display panel 100; the pressure sensor 140 includes a compressive material including single crystal silicon, graphene, carbon nanotube material, and an integrated circuit integrated with the compressive material.
The second substrate 120 is provided with a color resistance layer 122 (RGB color resistance), the display driving module 150 further includes a detection and calculation module 160, and the detection and calculation module 160 calculates and outputs a compensated differential voltage data display signal to the liquid crystal display panel 100 for displaying according to the pressure of the pressure sensor 140 and the transmittance change relationship of the color resistance layer 122. Generally, when liquid crystal is gathered at the bottom of the liquid crystal display panel 100, the thickness of a liquid crystal box is increased, so that the transmittance of a pixel is changed, particularly, the transmittance of blue light is influenced the most, and a differential voltage data display signal after compensation is calculated and output to the liquid crystal display panel 100 for displaying through the pressure and the transmittance change relation of the color resistance layer 122, so that the accuracy of display brightness adjustment is ensured.
The second display area 220 is divided into a plurality of sub-display areas 221, one pressure sensor 140 is disposed corresponding to each sub-display area 221, and the differential data display signal is mainly generated by comparing the brightness of the preset RGB gray scale and the currently displayed RGB gray scale, and a data driving chip generally performs algorithm compensation on the comparison result of the gray scales, such as 255/255/255 for the preset display phenomenon, 255/255/253 for the gravity mura, and 255/255/255 for the algorithm compensation, and when the differential data display signal is output to the RGB pixels, it can ensure that the picture display of the liquid crystal display panel 100 is normal.
Fig. 3 shows, as the second embodiment of this application, different from the above-mentioned first embodiment, the pressure sensor 140 is disposed on the black matrix 111 of the first substrate 110, the first substrate 110 faces the direction of the second substrate 120, the projection of the black matrix 111 covers the projection of the pressure sensor 140, and the pressure sensor 140 is disposed on a side of the black matrix 111 close to the liquid crystal, so as to better contact the liquid crystal layer 130, thereby rapidly sensing the pressure brought by the liquid crystal, and timely adjusting the differential data display signal, and the pressure sensor 140 is disposed corresponding to the black matrix 111 without affecting the transmittance of the pixel of the liquid crystal display panel 100.
As shown in fig. 4, as a third embodiment of the present application, different from the first embodiment, a light-shielding layer 121 is disposed on the second substrate 120, the pressure sensor 140 is disposed on a surface of the light-shielding layer 121 close to the liquid crystal layer 130, and in a direction of the second substrate 120 toward the first substrate 110, a projection of the light-shielding layer 121 covers a projection of the pressure sensor 140, so as to sense a pressure of the liquid crystal in time, and not affect a transmittance of a pixel.
As shown in fig. 5, as a fourth embodiment of the present application, a driving method for driving a liquid crystal display panel according to any of the above embodiments is disclosed, the driving method including the steps of:
s1: detecting pressure generated by liquid crystal in the second display area; and
s2: and calculating and generating an adjusted differential voltage data display signal according to the detected pressure, and outputting the display signal to drive a picture to display.
The pressure generated by liquid crystal in the gravity mura area is detected, so that the pressure generated by the liquid crystal in the mura area is obtained, and the adjusted differential voltage data display signal is finally calculated and generated according to the detected pressure to be output so as to drive the image to be displayed, so that the mura problem that the transmittance of R, G and B is changed and the image is yellow due to the fact that the liquid crystal at the edge of the bottom is influenced by gravity and accumulated below the liquid crystal is solved.
Before the step S1, the method also comprises the following steps:
s01: verifying and evaluating the data relation between the cell thickness of the liquid crystal display panel and the transmittance of the color resistance layer; and
s02: and verifying and evaluating the data relation between the box thickness of the liquid crystal display panel and the sealant of the liquid crystal in the second display region or the side of the first substrate or the second substrate.
Further, step S2 includes:
s21: detecting the penetration rate of the color resistance layer to obtain the actual brightness value of the corresponding color resistance;
s22: and comparing the actual brightness with a preset target brightness to calculate a brightness difference, and performing algorithm compensation according to the brightness difference to generate an adjusted differential voltage data display signal for output.
By verifying the data relation between the box thickness of the liquid crystal display panel and the gravity mura phenomenon, the gravity mura can be generated under the condition of the box thickness, and adjustment caused by no mura is avoided; further, considering that the penetration rate of the RGB color resistance in the liquid crystal display panel is consistent with the gravity mura only when the penetration rate exceeds a certain penetration rate, the pressure generated by the liquid crystal is fed back to the display driving module in the past day when the pressure generated by the liquid crystal meets the data relationship based on the two data relationships, so as to adjust the differential data display signal, and the differential data display signal is mainly generated by comparing the brightness of the preset RGB gray scale and the brightness of the currently displayed RGB gray scale, and the data driving chip generally performs algorithm compensation on the comparison result of the gray scale, if the preset display phenomenon is 255/255/255, the gravity mura is 255/255/253, and the gravity mura is 255/255/255 after the algorithm compensation, and when the differential data display signal is input to the RGB pixels, the normal image display of the liquid crystal display panel can be ensured.
As shown in fig. 6, as a fifth embodiment of the present application, different from the above embodiments, the second display area is divided into a plurality of sub-display areas, and one pressure sensor is disposed corresponding to each sub-display area, and the step S1 includes:
s1': detecting the pressure generated by the liquid crystal of each sub-display area in the second display area;
the step S2 comprises the following steps:
s2': and respectively calculating and generating differential voltage data display signals corresponding to each sub-display area according to the pressure fed back by the pressure sensor corresponding to each sub-display area so as to output the differential voltage data display signals to drive the image display.
The gravity mura area is divided into a plurality of sub-display areas, pressure induction is carried out on each sub-display area, pressure generated by liquid crystal in one area is fed back to the display driving module to adjust differential data display signals corresponding to the area, and therefore the mura problem in the area is solved.
It should be noted that, on the premise of not affecting the implementation of the specific embodiment, the limitations of the steps involved in the present disclosure are not considered as limiting the order of the steps, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present disclosure can be implemented, all the steps should be considered as belonging to the protection scope of the present disclosure.
The technical solution of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panel, which can be applied to the above solutions.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be considered as belonging to the protection scope of the present application.
Claims (10)
1. The utility model provides a liquid crystal display panel, liquid crystal display panel includes display area and non-display area, the display area includes first display area and locates the second display area along gravity direction one side, its characterized in that, display panel still includes:
the pressure sensor is arranged corresponding to the second display area; and
the display driving module is connected with the pressure sensor;
the pressure sensor detects the liquid crystal pressure of the second display area, and the display driving module adjusts the differential voltage data display signal to output according to the liquid crystal pressure so as to drive the image to display.
2. The liquid crystal display panel according to claim 1, wherein the liquid crystal display panel comprises a second substrate of the first substrate arranged opposite to the cell, a liquid crystal layer arranged between the first substrate and the second substrate, and sealant arranged around edges of the first substrate and the second substrate, and the pressure sensor is arranged on a surface of the sealant close to the liquid crystal.
3. The liquid crystal display panel according to claim 1, wherein the liquid crystal display panel comprises a second substrate of the first substrate disposed opposite to the cell, and a liquid crystal layer disposed between the first substrate and the second substrate, and wherein the pressure sensor is disposed on a black matrix of the first substrate, and a projection of the black matrix covers a projection of the pressure sensor in a direction of the first substrate toward the second substrate.
4. The liquid crystal display panel according to claim 1, wherein the liquid crystal display panel includes a second substrate of the first substrate provided to the cell, and a liquid crystal layer provided between the first substrate and the second substrate, a light shielding layer is provided on the second substrate, the pressure sensor is provided on a surface of the light shielding layer close to the liquid crystal layer, and a projection of the light shielding layer covers a projection of the pressure sensor in a direction of the second substrate toward the first substrate.
5. The LCD panel according to any one of claims 1-4, wherein the LCD panel comprises a second substrate of the first substrate arranged opposite to the cell, and a liquid crystal layer arranged between the first substrate and the second substrate, the second substrate is provided with a color resistance layer, the display driving module further comprises a detection and calculation module, and the detection and calculation module calculates and outputs the compensated differential voltage data display signal to the LCD panel for display according to the pressure of the pressure sensor and the transmittance change relationship of the color resistance layer.
6. The liquid crystal display panel of claim 1, wherein the pressure sensor comprises a compressive material comprising single crystal silicon, graphene, carbon nanotube material and an integrated circuit bonded to the compressive material.
7. A driving method for driving the liquid crystal display panel according to any one of claims 1 to 6, comprising the steps of:
detecting a pressure generated by the liquid crystal in the second display area; and
and calculating and generating an adjusted differential voltage data display signal according to the detected pressure, and outputting the display signal to drive a picture to display.
8. The driving method according to claim 7, wherein the step of generating the adjusted differential voltage data display signal to output for driving a picture display according to the detected pressure calculation includes:
detecting the penetration rate of the color resistance layer to obtain the actual brightness value of the corresponding color resistance;
and comparing the actual brightness with a preset target brightness to calculate a brightness difference, and performing algorithm compensation according to the brightness difference to generate an adjusted differential voltage data display signal for output.
9. The driving method as claimed in claim 7, wherein the step of detecting the pressure generated by the liquid crystal in the second display region further comprises the steps of:
verifying and evaluating the data relation between the cell thickness of the liquid crystal display panel and the penetration rate of the color resistance layer; and
and verifying and evaluating the data relation between the cell thickness of the liquid crystal display panel and the frame glue of the liquid crystal in the second display area or the side of the first substrate or the second substrate.
10. The driving method as claimed in claim 7, wherein the second display region is divided into a plurality of sub-display regions, one of the pressure sensors is provided for each of the sub-display regions, and the step of detecting the pressure generated by the liquid crystal in the second display region comprises:
detecting the pressure generated by the liquid crystal of each sub-display area in the second display area;
the step of calculating and generating an adjusted differential voltage data display signal according to the detected pressure to output the signal so as to drive the picture to display comprises the following steps:
and respectively calculating and generating differential voltage data display signals corresponding to each sub-display area according to the pressure fed back by the pressure sensor corresponding to each sub-display area so as to output the differential voltage data display signals to drive the image display.
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| CN116300182A (en) * | 2023-05-11 | 2023-06-23 | 惠科股份有限公司 | Display panel and display device |
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